also today, gop presidential candidate mitt romney drops by nbc's education nation summit. that's where nbc's peter alexander is this morning. peter, good morning. >> reporter: natalie, good morning to you at the united nations today. president obama will confront unrest in the middle east in the muslim world specifically, warning of what he will call forces that would drive us apart, and while the debates are still eight days away, the differences between these two candidates on foreign policy are now taking center stage. in the must-win battleground of colorado monday, mitt romney previewed his foreign policy arguments against the president. >> he said the developments in the middle east are bumps in the road. yeah, that was my reaction. bumps in the road? we had -- we had an ambassador assassinated. these are not bumps in the road. these are human lives. >> the white house called that assault desperate and offensive. romney was attacking the president's comments on "60 minutes" describing recent unrest in the middle east. >> but i was pretty certain and continue to be pr